9.3 sec in total
665 ms
8.4 sec
209 ms
Visit erex.co.jp now to see the best up-to-date Erex content for Japan and also check out these interesting facts you probably never knew about erex.co.jp
イーレックスは、2020年に「再生可能エネルギーをコアに、電力新時代の先駆者になる」を新たなビジョンに掲げました。再生可能エネルギーのリーディングカンパニーとして、持続可能な社会の実現のために、幅広いステークホルダーの皆様とともに邁進してまいります。
Visit erex.co.jpWe analyzed Erex.co.jp page load time and found that the first response time was 665 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
erex.co.jp performance score
name
value
score
weighting
Value6.7 s
2/100
10%
Value32.1 s
0/100
25%
Value15.0 s
1/100
10%
Value450 ms
62/100
30%
Value0.102
89/100
15%
Value22.6 s
1/100
10%
665 ms
615 ms
934 ms
406 ms
414 ms
Our browser made a total of 70 requests to load all elements on the main page. We found that 97% of them (68 requests) were addressed to the original Erex.co.jp, 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Erex.co.jp.
Page size can be reduced by 378.1 kB (32%)
1.2 MB
820.1 kB
In fact, the total size of Erex.co.jp main page is 1.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.
Potential reduce by 11.1 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 2.0 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 11.1 kB or 74% of the original size.
Potential reduce by 277.0 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Erex needs image optimization as it can save up to 277.0 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 75.1 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 75.1 kB or 59% of the original size.
Potential reduce by 14.9 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Erex.co.jp needs all CSS files to be minified and compressed as it can save up to 14.9 kB or 79% of the original size.
Number of requests can be reduced by 28 (41%)
68
40
The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Erex. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
erex.co.jp
665 ms
www.erex.co.jp
615 ms
jquery-1.6.1.min.js
934 ms
jquery.cookie.js
406 ms
jquery.font_size.js
414 ms
jquery.corner.js
423 ms
common.js
435 ms
import.css
448 ms
top.css
783 ms
reset.css
209 ms
base.css
186 ms
style.css
388 ms
print.css
391 ms
btn_contact.png
434 ms
btn_sitemap.png
457 ms
btn_search.png
554 ms
banner_5.png
734 ms
btn_sub_1.png
948 ms
btn_sub_2.png
1155 ms
btn_sub_3.png
923 ms
esm.png
828 ms
btn_1.png
916 ms
btn_2.png
1124 ms
btn_3.png
1188 ms
ico_info.png
1346 ms
ico_new.png
1372 ms
ico_pr.png
1385 ms
ico_pdf_s.png
1870 ms
ico_paper.png
1588 ms
btn_main_1.png
1788 ms
btn_main_2.png
1752 ms
btn_main_3.png
1763 ms
btn_common_1.jpg
1777 ms
bnr_erexsm.png
2202 ms
bnr_erexsam.png
2147 ms
banner_4.png
2141 ms
banner_hlsol.jpg
2400 ms
banner_daiwa.jpg
2208 ms
banner_emck.png
2773 ms
banner_pps1.JPG
2536 ms
btn_pagetop.png
2564 ms
f_navi_1.png
2623 ms
f_navi_2.png
2619 ms
f_navi_7.png
2804 ms
f_navi_3.png
2926 ms
f_navi_4.png
2776 ms
f_navi_5.png
2800 ms
f_navi_6.png
2680 ms
ga.js
39 ms
company_name.png
2709 ms
__utm.gif
11 ms
header_bg.png
2731 ms
logo.png
2858 ms
fontsize.png
2831 ms
btn_font_s.png
3076 ms
btn_font_m.png
2968 ms
btn_font_l.png
3000 ms
search.png
2632 ms
serarch_bg.png
2757 ms
gnavi.png
2974 ms
main5.jpg
4978 ms
waku_antei_bottom.png
2895 ms
waku_antei_mid.png
2845 ms
tit_antei.png
2843 ms
waku_bottom.png
2904 ms
tit_info.png
2901 ms
ico_backunm.png
2762 ms
footerbg.png
2863 ms
f_logo.png
2841 ms
ico_flink.png
2892 ms
erex.co.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Links do not have a discernible name
erex.co.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
erex.co.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
JA
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Erex.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Erex.co.jp main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
erex.co.jp
Open Graph description is not detected on the main page of Erex. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: